Rapid alloy design from superior eutectic high-entropy alloys

被引：52
作者：
Wu, Qingfeng [1 ]
Jia, Yuhao [1 ]
Wang, Zhijun [1 ]
He, Feng [1 ]
Wei, Yufan [1 ]
Li, Junjie [1 ]
Wang, Jincheng [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
SCRIPTA MATERIALIA | 2022年 / 219卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloy; Alloy design; Supersaturated solid solution; Precipitate; Mechanical property; DUCTILITY; STRENGTH; RECRYSTALLIZATION; BEHAVIOR; ELEMENT;
D O I：
10.1016/j.scriptamat.2022.114875
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The large amounts of data in eutectic high-entropy alloys (EHEAs) provide the opportunity for a rapid design of superior high-entropy alloys (HEAs). In this letter, we proposed a strategy to screen high-performance supersaturated HEAs based on the existing EHEAs with superior properties. The designed HEAs of supersaturated terminal solid solutions possess unique characteristics. On the one hand, the as-cast alloys exhibited primary single-phase dendrites/grains with maximum solid solution hardening and minor interdendritic/intergranular second phases as modifiers. On the other hand, the maximum saturation enabled the highest volume fraction of precipitates during aging. Taking advantage of these characteristics, high strength and ductility were achieved in the designed HEAs. These findings can accelerate the exploration of supersaturated HEAs with superior properties.
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页数：6
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